baber/WOPTO huggingface dataset:
Patent MX-PA04004156-A (MX)
Title: Bi-directional and reverse directional resource reservation setup protocol.
Inventor: SHARIF M SHAHRIER
IPC: H04L47/724
Filed: 2002-11-01
Abstract: The invention relates to establishing a wireless packet session between at least two users ( USER A and USER B ). At least one ( USER A or USER B ) of the users is a wireless user. A first of the at least two users send a reservation setup protocol (RSVP)PATH message (30) to a second user of the two users. The RSVP PATH message (30) includes information for reserving resources for transmissions from only the first user to the second user; or from the first user to the second user and the second user to the first user, or only for transmissions from the second user to the first user. In response to receiving the RSVP PATH message (30), the second user transmits a RSVP reservation (RESV) message (32) to the first user. Transmissions occur using the reserved resources.
Patent MX-PA04004297-A (MX)
Title: Device, method and system for multimedia content adaptation.
Inventor: JEAN-CLAUDE CHEVET
IPC: H04N5/00
Filed: 2002-10-22
Abstract: The invention concerns a device receiving data associated with a first profile and generating data associated with a second profile, comprising - means to extract facts associated with the first profile, - means to extract facts associated with the second profile, - a set of rules describing a way to modify facts associated with said first profile into facts associated with said second profile, - means to analyze said facts associated with the first profile and said facts associated with the second profile, - means to modify facts associated with said first profile into facts associated with said second profile according to said set of rules.The device is characterized in that it comprises, - means to request additional rules when said set of rules does not allow to modify facts associated with said first profile into facts associated with said second profile.
Patent MX-PA04004953-A (MX)
Title: Absorbent article with improved fit.
Inventor: URBAN WIDLUND
IPC: A61F13/15
Filed: 2002-11-25
Abstract: Absorbent article, such as a sanitary towel, with a stiffening element (6) which is intended to contribute to the three-dimensional shape of the article during use. The stiffening element (6) is in a plane state before use of the article and is provided with a first cutout (610) which is arranged so as to make possible pressing-together of the stiffening element in the lateral direction at a transition (12) between the front portion and the crotch portion. The shape of the stiffening element (6) and the shape of the first cutout (610) are adapted so that the stiffening element, after pressing-together and positioning on the wearer, has a width (M) at said transition (12) which is adapted to the distance between the muscle tendons of the wearer on both sided of the crotch of the wearer in the groin of the latter and which is of th eorder of 15-45 mm. The stiffening element (6) is arranged so that its side edges in the front portion (1) of the article, in said pressed-together utilization state, diverge in the direction (1) from the crotch portion (3) in over the front portion (1), and form an acute angle (alpha) with the longitudinal direction of the article.
Patent MX-PA04007385-A (MX)
Title: Extractor hood and method for extracting and/or purifying contaminated carriers.
Inventor: JOCHEN KLEMM
IPC: A47B77/08
Filed: 2003-02-17
Abstract: The invention relates to an extractor hood for extracting and/or purifying a carrier that is contaminated with solid and/or liquid substances. The invention also relates to a method for extracting and/or purifying a carrier that is contaminated with solid and/or liquid substances. In order to improve the extraction and/or purification output of an extractor hood and simultaneously to reduce the amount of maintenance required, the invention provides an extractor hood (1) and a method of using a pre-filtering unit (11) upstream of the filter unit (4), whereby at least already a partial flow (Ph) of the carrier to be extracted and/or to be purified is purified to a certain degree already before it reaches the filter unit (4) that is configured as the main filter.
Patent MX-PA04008860-A (MX)
Title: Twisted pair cable with cable separator.
Inventor: CHRISTIAN YAMEOGO
IPC: H01B11/04
Filed: 2003-03-13
Abstract: Generally, aspects of embodiments of the invention include cable separator spline which comprises a plurality of longitudinally extending walls joined along a central axis of the spline, and a plurality of longitudinally extending channels. Each longitudinally extending channel is defined by a pair of the longitudinally extending walls, where the pair of longitudinally extending walls includes a first wall substantially thicker than a second wall. Other embodiments include a cable separator spline assembly having a plurality of longitudinally extending walls joined along a central axis of the spline, and a plurality of longitudinally extending channels. Each longitudinally extending channel is defined by a pair of the longitudinally extending walls, wherein a pair of opposing longitudinally extending walls have defined through them a common gap defining two separate sub-splines having T --shaped cross-sections. Embodiments of the invention feature various spline shapes as well as various internal structures and materials.
Patent MX-PA04009377-A (MX)
Title: Crank shaft bearing structure for internal combustion engine.
Inventor: YO OBA
IPC: F16C25/08
Filed: 2004-09-27
Abstract: PROBLEM TO BE SOLVED: To greatly reduce the hammering noises of a high output internal combustion engine having high explosion pressure, resulting from backlash, by using a backlash absorbing means for absorbing the radial backlash occurring between an outer race of a rolling bearing and a bearing hole of a crank case while rotatably supporting the crank shaft for the internal combustion engine on the crank case via the rolling bearing. SOLUTION: The internal combustion engine has the crank shaft 6 rotatably supported in the bearing hole of the crank case 10 via the ball bearing BB and the backlash absorbing means A for preventing the radial backlash between the ball bearing BB and the bearing hole 18. The backlash absorbing means A has a push plug 30 for pushing the outer race 2 of the ball bearing BB in a direction perpendicular to the axis of the crank shaft 6. The push plug 30 is arranged parallel to the crank shaft 6 between a cylinder 1 and the crank shaft 6, and it is resilien tly energized to push the outer race 23 of the ball bearing BB to the side of receiving the explosion pressure of the bearing hole 18 of the crank case 10.
Patent MX-PA04012967-A (MX)
Title: Closing cone.
Inventor: KART-HEINZ SPETHER
IPC: B67B3/20
Filed: 2003-06-17
Abstract: The invention relates to a closing cone for screwing screw tops onto containers, especially bottles. Said closing cone comprises a receiver, having a picking ring non-rotationally linked therewith, and a picking device. The closing cone is characterized in that the picking ring (5) is segmented and has movable segments (17) and in that an actuator (65) is provided that interacts wit the segments (17) to adjust a variable inner diameter of the picking ring (5).
Patent MX-PA05000662-A (MX)
Title: Stable pharmaceutical composition comprising erythropoietin.
Inventor: PARIS ALENKA
IPC: A61P7/00
Filed: 2003-07-14
Abstract: The present invention provides a new stable pharmaceutical composition of erythropoietin (EPO) that is stabilized with a combination of a poloxamer polyol and a polyhydric alcohol.
Patent MX-PA05001321-A (MX)
Title: Disposable absorbent pant having refastenable seams.
Inventor: MORTELL HEATHER SCHENCK
IPC: A61F13/496
Filed: 2003-05-29
Abstract: A disposable absorbent pant having refastenable seams that minimize the product's potential for tearing when forces are applied to separate the refastenable seams. More particularly, the refastenable seams have a shear separation strength that is less than a tensile or tear strength of the outer cover and/or side panels. Also, the bonding strength between a fastening component and the portion of the chassis to which the fastening component is bonded may be greater than the shear separation strength of the refastenable seams. Additionally, the shear separation strength of the refastenable seams may be greater than the peel separation strength of the refastenable seams to enable easy unfastening of the garment through the application of peel forces.
Patent MX-PA05001815-A (MX)
Title: Adsorption of nucleic acids to a solid phase.
Inventor: WALTER THOMAS
IPC: C12N15/10
Filed: 2005-02-15
Abstract: The present invention is directed to a method for adsorbing, i.e. non-covalently binding, nucleic acids to a solid phase using a two-step procedure. Furthermore, the present invention pertains to a method for isolating nucleic acids from a biological sample. In the first step of the procedure, lysis is effected by mixing the biological sample with an aequous lysis buffer containing a chaotropic agent and incubating the mixture; in the second step, the concentration of the chaotropic agent in the mixture is increased and the mixture is contacted with the solid phase, whereby the nucleic acids in the liquid phase is adsorbed to the solid phase.
Patent MX-PA05001881-A (MX)
Title: Sliding axle alarm.
Inventor: WINTER DICK E
IPC: G08B1/02
Filed: 2005-02-16
Abstract: An alarm system that indicates to an operator the status of locking pins of a vehicle sliding axle assembly. The alarm system includes an alarm valve coupled to the locking pins and in fluid communication with an alarm. When the pins are unlocked from a vehicle component, the alarm valve is configured in an alarm mode to indicate the unsecured condition of the assembly. In this mode, air is diverted from the vehicle brakes to sound the alarm, thereby informing an operator that the pins are improperly engaged. In one embodiment, the alarm valve is in communication with or includes a pressure relief valve, which diverts a sufficient amount of air from the vehicle brakes so that the brakes cannot be released. When the pins are properly locked to secure the slider axle assembly, the alarm valve does not divert air from the brakes to sound the alarm.
Patent MX-PA05002809-A (MX)
Title: Synergistic uv absorber combination.
Inventor: FREDERIQUE WENDERBON
IPC: D06M13/352
Filed: 2003-09-23
Abstract: A stabilizer composition comprising (A) a compound of the formula (I) wherein R is (CH2-CH2-O-)n,-R2; -CH2-CH(OH)-CH2-O-R2; or -CH(R3)-CO-O-R4; n is 0 or 1; R2 is C1-C,13alkyl or C2 -C20alkenyl or C6-C12aryl or CO-C1-C18alkyl; R3 is H or C1-C8 alkyl; R4 is C1,-C12alkyl or C2-C12alkenyl or C5 -C6cycloalkyl; and (B) one or more compounds selected from benzotriazoles of the formula (IIa), 2- -hydroxybenzophenones of the formula (IIb), oxalanilides of the formula (IIc), 2-hydroxyphenyltriazines of formula (IId), cinnamates of formula (IIe), and benzoates of formula (IIf) as defined in claim 1, is especially effective towards stabilizing organic materials against degradation induced by light, heat or oxidation.
Patent MX-PA05010502-A (MX)
Title: Ventable storage bag.
Inventor: MCGUIRE KENNETH S
IPC: B65D33/01
Filed: 2004-03-24
Abstract: A storage bag for food products with a venting structure to expel excess air trapped inside the bag after the bag has been closed or sealed. After the excess air is removed, the venting structure is covered and sealed to prevent air from re-entering the bag or other objects from entering the bag.
Patent MX-PA05012127-A (MX)
Title: Aqueous vacuum-forming laminating adhesive composition containing polyether based plasticizers.
Inventor: RAGUNATHAN KALIAPPA G
IPC: C09J131/04
Filed: 2004-05-12
Abstract: An aqueous adhesive composition that includes an aqueous medium and a dispersed resinous phase containing a water dispersible polyurethane, a polymer that includes residues from a vinyl ester monomer, and a polyether containing compound as a plasticizer. The composition may be part of a multi-layer composite that includes a thermoplastic substrate, a thermoplastic cover layer, and an adhesive composition layered over at least a portion of the cover layer in contact with the substrate. The thermoplastic cover layer is adhered to the substrate by applying the adhesive composition to the cover layer, drying the composition forming a dried adhesive layer, heating the cover layer, contacting the dried adhesive layer on the cover layer to the substrate, and applying a vacuum to the substrate for a time and temperature sufficient to adhere the cover layer to the substrate.
Patent MX-PA06001556-A (MX)
Title: Pyrimidylpyrrole derivatives active as kinase inhibitors.
Inventor: PILLAN ANTONIO
IPC: A61K31/513
Filed: 2004-08-06
Abstract: Pyrimidylpyrrole derivatives of formula (1) and pharmaceutically acceptable salts thereof, as defined in the specification, process for their preparation and pharmaceutical compositions comprising them are disclosed; the compounds of the invention may be useful, in therapy, in the treatment of diseases associated with a disregulated protein kinase activity, like cancer.
Patent MX-PA06002492-A (MX)
Title: Enhanced locomotive adhesion control.
Inventor: WORDEN BRET
IPC: B61C15/14
Filed: 2004-09-16
Abstract: A method of dynamically controlling traction of a locomotive (V) having a plurality of axles (A1-A6) on each of which are mounted wheels (W) for moving the locomotive over a set of rails (R). A creep control signal (creep_ n) is provided to a controller (TMTC) for each axle to move the locomotive over the rails, the creep control signal being a function of adhesion operation characteristics (tractive effort, torque, creep) for that axle. An advisory signal (ccc_n) combining values representative of the adhesion quality of the two axles is provided to the controller to maximize the tractive effort of the axle if the adhesion quality of the other axle is a maximum for the current rail conditions. This reduces the amount of time for the axle to attain its maximum tractive effort when rail conditions change.
Patent MX-PA06004394-A (MX)
Title: Moisture-curable, polyether urethanes with reactive silane groups and their use as sealants, adhesives and coatings.
Inventor: CRAWFORD DEREK L
IPC: C08G18/08
Filed: 2004-10-20
Abstract: A moisture curable, alkoxysilane-functional polyether urethanes containing a) 20 to 90 % by weight, of a polyether urethane containing two or more reactive silane groups and polyether segments having a number average molecular weight (Mn) of at least 3000 and a degree of unsaturation of less than 0.04 milliequivalents/g, where the sum of Mn of the polyether segments averages 6000 to 20,000, and the reactive silane groups are incorporated by reaction of an isocyanate-reactive group with a compound of formula: (I) b) 10 to 80 % by weight, of a polyether urethane containing one reactive silane group and one or more polyether segments having Mn of 1000 to 15,000, where the reactive silane groups are incorporated by the reaction of an isocyanate group with a compound of formula: (II).
Patent MX-PA06005727-A (MX)
Title: Method for dispensing a food product.
Inventor: CRILLY JAMES FRANCIS
IPC: A23G9/28
Filed: 2004-10-15
Abstract: Ice cream is dispensed from an apparatus comprising holding means for an ice cream container under pressure. Actuating means open and close on request a valve of the ice cream container, thus delivering individual portions of ice cream.
Patent MX-PA06008186-A (MX)
Title: Recessed fixture with hinged doors and rotatable lamp.
Inventor: NEELD JAMES N
IPC: F21V19/00
Filed: 2006-07-19
Abstract: A recessed light fixture having a rotation ring allowing rotation of a lamp mounted over the fixture frame aperture, the rotation ring easily rotatable on the frame and held in place by a ring clamp. The recessed light fixture rotation ring has a mechanical brake for locking the ring in place after positioning of the lamp. The ring also has a slip disc positioned between the surface of the frame and the ring to allow easy rotation. The housing of the fixture has junction boxes mounted on side walls which are hinged to the sidewalls of the housing and which swivel into the interior of the housing for ready access after installation through the aperture of the frame. The lamp of the fixture movable about a horizontal adjustment and vertical adjustment axis while also maintaining position with respect to the reflector.
Patent MX-PA06009507-A (MX)
Title: Methods for protein production.
Inventor: DORAI HAIMANTI
IPC: C12N5/06
Filed: 2005-02-11
Abstract: Methods for altering the cellular secretion rate of a protein, such as an antibody and the altered cells produced by the method are disclosed. The methods and altered cells are useful for producing high levels of proteins for therapeutic, diagnostic or research purposes.
Patent MX-PA06010833-A (MX)
Title: Prolonged-release compositions comprising torasemide and a matrix-forming polymer.
Inventor: GUGLIETTA ANTONIO
IPC: A61K31/64
Filed: 2005-03-23
Abstract: Prolonged-release diuretic compositions containing torasemide as active ingredient. The compositions of the invention are useful to be able to avoid the troublesome urinary urgencies caused by conventional immediate- release compositions.
Patent MX-PA06014455-A (MX)
Title: Self-contained viscous liquid dispenser with a foaming pump.
Inventor: LEWIS RICHARD P
IPC: B05B7/00
Filed: 2005-03-28
Abstract: A self contained viscous liquid dispenser (10) with a foaming pump mechanism(200 ) includes a housing (14) defining an internal liquid reservoir (68). A foamingpump mechanism is configured with the housing and includes a horizontally disposedpump chamber (202) fitted through an opening (23) in the housing to extend intothe reservoir. A pump cylinder (214) is slidably disposed and retained in thechamber. Actuation of the pump cylinder results in a liquid/air mixture withinthe pump chamber being pressurized and dispensed from the chamber as a foam.
Patent MY-100675-A (MY)
Title: Method for the multiple use of a copper wire used as electrode wire for electrical resistance longitudinal seam welding.
Inventor: WOLFGANG HERMAN WEIL
IPC: B23K11/30
Filed: 1987-07-29
Abstract: A METHOD FOR PERMITTING THE MULTIPLE USE OF COPPER WIRES BY WAY OF DRAWING DIRECTLY NEW COPPER WIRES WITH REDUCED DIAMETER FROM COPPER WIRES EMPLOYED AS WIRE ELECTRODES FOR RESISTANCE LONGITUDINAL SEAM WELDING AFTER THEIR USE IN WELDING. THESE WIRES THEN, FOR EXAMPLE, CAN BE USED AS SIGNAL CONDUCTORS OR AS WINDINGS.THE PROPERTIES OF THESE WIRES ARE TOTALLY IN ACCORD WITH COPPER WIRES THAT ARE DIRECTLY DRAWN AS DRAWN FROM NEW COPPER. BY THIS PROCESS, THE ADDITIONAL OPERATION COSTS MENTIONED ABOVE CAN BE SUBSTANTIALLY REDUCED AND IN MANY CASES EVEN TOTALLY AVOIDED.
Patent MY-100365-A (MY)
Title: Surgical blade handle
Inventor: BERNARD F KOPACZ
IPC: A61B17/3211
Filed: 1987-09-29
Abstract: A HANDLE FOR REMOVABLY HOLDING A SUBSTANTIALLY PLANAR SURGICAL BLADE HAVING A SLOT THEREIN COMPRISES A REARWARD END TO BE HELD BY THE USER AND A FORWARD END. AN ELONGATE TANG AT THE FORWARD END INCLUDES A PROXIMAL END, A DISTAL END AND A BOSS PROJECTING OUTWARDLY FROM A SIDE OF THE TANG ADJACENT TO THE DISTAL END THEREOF. THIS TANG INCLUDES A PAIR OF OPPOSED LONGITUDINAL GROOVES EXTENDING FROM THE DISTAL END TO THE PROXIMAL END OF THE TANG WHEREIN THE GROOVES RUN SUBSTANTIALLY ALONG THE INTERFACE OF THE TANG AND THE BOSS. THE TANG ALSO INCLUDES A RELIEF RECESS PROJECTING INTO THE BOSS TO A DEPTH AT LEAST AS DEEP AS THAT PORTION OF THE BOSS EXTENDING OUTWARDLY FROM THE GROOVES. THE RECESS DIVIDES THE BOSS INTO A FORWARD BOSS PORTION AND A REARWARD BOSS PORTION.(FIG.4)
Patent MY-102805-A (MY)
Title: Zirconium chelates and their use for cross-linking
Inventor: DONALD EDWARD PUTZIG
IPC: C07C215/14
Filed: 1988-02-08
Abstract: A WATER-SOLUBLE ZIRCONIUM CHELATE FORMED FROM A TETRALKYL ZIRCONATE AND HYDROXYETHYL-TRIS-(HYDROXYPROPYL) ETHYLENE DIAMINE, AND USE OF THE CHELATE AS CROSS-LINKING AGENTS IN HYDRAULIC FRACTURING FLUIDS AND IN GELS THAT ARE USED FOR SELECTIVELY PLUGGING PERMEABLE ZONES IN SUBTERRANEAN FORMATIONS FOR PLUGGING SUBTERRANEAN LEAKS.
Patent MY-103162-A (MY)
Title: Rear window sun screen
Inventor: MICHAEL JOHN PANK
IPC: B60J3/00
Filed: 1988-05-09
Abstract: AN ARRANGEMENT FOR PROVIDING SOME PROTECTION AGAINST SUN PASSING THROUGH A REAR FIXED GLASS WINDOW OF A MOTOR VEHICLE WHICH COMPRISES PLIABLE MESH HELD AGAINST THE EXTERNAL FACE OF THE CONVEX SHAPE OF THE GLASS OF THE REAR WINDOW WITH A HOOK AND LOOP FASTENING SYSTEM EXTENDING AROUND THE PERIPHERY OF THE MESH AND BEING ADHERED DIRECTLY TO THE GLASS OF THE REAR WINDOW. THE MESH IS COMPRISED OF FIBRES BEING SUBSTANTIALLY FIBREGLASS SO AS TO HAVE SIMILAR THERMAL CONTRACTION AND EXPANSION CHARACTERISTICS AS THE GLASS OF THE MOTOR VEHICLE WINDOW. (FIG. 1)
Patent MY-106083-A (MY)
Title: Glass composition for use in glazes or enamels.
Inventor: JOHANNES JOSEPH WINANDUS MURKENS
IPC: C03C8/02
Filed: 1989-11-15
Abstract: A GLASS FLUX COMPOSITION CONSISTING ESSENTIALLY BY WEIGHT OF 45-65% Bi203, 25-36% Si02, 4- 6% B203, 3-6% Ti02, 1-3% Na20, 0.5-2% K20, 2-6% Li20, 0-3% A1203, 0-1% Zr02, 0-1% BaO, 0-1% CaO, 0-1% MgO, 0-1% ZnO, 0-3% PbO AND 0-0.5% CdO IS USEFBL FOR PREPARING A GLAZE OR ENAMEL COMPOSITION ESPECIALLY FOR APPLICATION TO GLASS SUCH THAT THE COMPOSITION IS THEN FIRED IN CONTACT WITH A MOULD SURFACE OR WITH ANOTHER GLASS SURFACE.
Patent MY-108069-A (MY)
Title: Preparation of beta-ketoester useful in preparing quinolone antibiotics.
Inventor: FRANK R BUSCH
IPC: C07C69/738
Filed: 1991-03-26
Abstract: A METHOD FOR PREPARING A COMPOUND OF THE FORMULASAID METHOD COMPRISING REACTING A COMPOUND OF THE FORMULAWITH A DIANION OF THE FORMULAWHEREIN Q IS C-H OR N; R1 IS C1 TO C6 ALKYL, BENZYL OR P-NITROBENZYL; X AND Y ARE INDEPENDENTLY SELECTED FROM FLUORO AND CHLORO; AND Z IS FLUORO, CHLORO OR BROMO.
Patent MY-111875-A (MY)
Title: Washing machine having function of bubble cleaning
Inventor: MASAHIRO YAMAMOTO
IPC: D06F35/00
Filed: 1992-02-26
Abstract: THE WASHING MACHINE IN ACCORDANCE WITH THE PRESENT INVENTION INCLUDES AN OUTER HOUSING (1), A TUB (3), A WASHING AND DEHYDRATION TUB (2), A NOZZLE (12) AND A PULSATOR (4). THE PULSATOR (4) HAS HOLES (36), THROUGH WHICH HOLES (36) THE AIR SUPPLIED TO THE TUB (3) ENTER AS BUBBLES IN THE WASHING AND DEHYDRATING TUB (2). THE OUTER HOUSING (1) IS TAPERED SUCH THAT THE LOWER PORTION BECOMES NARROWER. A NOZZLE (12) IS FITTED TO THE TUB (3), AND THE AIR FED FROM THE NOZZLE (12) IS INTRODUCED TO THE WASHING AND DEHYDRATING TUB (2) THROUGH THE HOLES (36) PROVIDED AT THE CENTRAL PORTION OF THE PULSATOR (4), AS BUBBLES. AT INTERMEDIATE DEHYDRATION, THE WASHING AND DEHYDRATING TUB (2) IS ROTATED AT LOW SPEED FOR A PRESCRIBED TIME PERIOD, AND THEN ROTATED AT HIGH SPEED FOR A PRESCRIBED TIME PERIOD. AFTER THE WASHING AND DEHYDRATING TUB (2) IS ROTATED FOR A PRESCRIBED TIME PERIOD AT A HIGH ROTATION SPEED, THE NUMBER OF ROTATION IS INCREASED TO THE HIGHEST. AT DEHYDRATION, IF THE NUMBER OF ROTATION OF THE WASHING AND DEHYDRATING TUB (2) EXCEEDS THE UPPER LIMIT SET NUMBER OF ROTATION, POWER SUPPLY TO THE MOTOR DRIVING THE WASHING AND DEHYDRATING TUB (2) IS STOPPED, AND THEN IF THE NUMBER OF ROTATION BECOMES LOWER THAN THE LOWER SET NUMBER, POWER IS AGAIN SUPPLIED TO THE MOTOR (5). IF DEHYDRA~G OPERATIOLI- IS INTEMLPTED, A CLUTCH SWITCHING MECHANISM DOES NOT OPERATE UNTIL THE NUMBER OF ROTATION OF THE WASHING AND DEHYDRATING TUB (2) BECOMES EQUAL TO OR LOWER THAN A PRESCRIBED VALUE. FIG. 1
Patent MY-114500-A (MY)
Title: Process for controlling particle size of napthoquinone diazide
Inventor: JOSEPH E OBERLANDER
IPC: C07C245/00
Filed: 1998-12-21
Abstract: A PROCESS FOR PRODUCING A NAPHTHOQUINONE DIAZIDE ESTER OF A PHENOLIC COMPOUND THAT IS USEFUL IN A PHOTORESIST COMPOSITION, WHICH PROCESS COMPRISES PROVIDING A NAPHTHOQUINONE DIAZIDE ESTER SOLUTION IN AN ORGANIC POLAR SOLVENT; ADDING THE RESULTING NAPHTHOQUINONE DIAZIDE ESTER SOLUTION TO A PRECIPITATION BATH THAT IS MAINTAINED AT A TEMPERATURE OF FROM ABOUT 0OC TO ABOUT -30OC; AND FILTERING THE RESULTING NAPHTHOQUINONE DIAZIDE ESTER.